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Check out our video library AppCheck defending against newest ransomware, automatic recovery and real-time backup.

  • Distribution Method : Automatic infection using exploit by visiting website
 
  • MD5 : b637fa22ee9e757fbfc19d2b116f0766
 
  • Major Detection Name : W32/GenKryptik.BAPN!worm (Fortinet)
 
  • Encrypted File Pattern : <Original Filename>.<Original Extension>
 
  • Malicious File Creation Location :
         - C:\Users\%UserName%\AppData\Local\READ_ME.txt
         - C:\Users\%UserName%\AppData\Roaming\<Random>.com
         - C:\Windows\System32\Tasks\<Random>
         - C:\Windows\System32\Tasks\<Random>1
 
  • Payment Instrucition File : READ_ME.txt
 
  • Major Characteristics :
         - Offline Encryption
         - Only run on Korean operating system
         - Change the default values of the registry entry "HKEY_CLASSES_ROOT\mscfile\shell\open\command" and disable system restore (wmic shadowcopy delete) using Event Viewer (eventvwr.exe)
         - Auto execute payment instrucition file (pcalua.exe -a notepad.exe -c %LocalAppData%\READ_ME.txt) every 15 minutes by adding Task Scheduler entries
         - Auto connect MY DECRYPTOR site (pcalua.exe -a http://<URL>) every a hour by adding Task Scheduler entries

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